民用建筑地下停车库通风换气量计算及现场实测分析

Calculation of ventilating rate and analyses of field measurement for underground garages of civil buildings

对目前常用的 4种民用地下停车库通风换气量计算公式作了分析比较 ,发现有些公式的计算结果相差悬殊。根据化学燃烧理论 ,建立了通风换气量计算公式 ,并对地下停车库通风情况进行了实测 ,建议采用稀释浓度法计算通风量。

Analyses and compares four formulas for calculating ventilating rate in underground garages of civil buildings. Finds that some calculating results are quite diveraged.Based on chemical burning theory, establishes a novel formula to calculate the ventilating rate. Measures CO concentration in two underground garages for five days. Suggests that concentration diluting method should be used to calculate the ventilation rate.